There are four language skills: listening, speaking, reading, and writing. Listening and reading are receptive skills, while speaking and writing are productive skills.

A word, a phrase, or a number of words that can be considered to be a single item of vocabulary (e.g., bus, bus stop, school bus stop).

A set of words that are connected in some way, usually by type (e.g., different items of clothing, vocabulary describing the weather, etc.).

Another word for “vocabulary.”

A language systematically used to make communication possible between people not sharing a first language.